linux-kernel - Re: sdhci-pci fails on 3.0.0-rc1 on Dell E6510

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Message-ID: <4DF8E4C7.6060303@hartkopp.net>
Date:	Wed, 15 Jun 2011 18:58:47 +0200
From:	Oliver Hartkopp <socketcan@...tkopp.net>
To:	Ram Pai <linuxram@...ibm.com>
CC:	Yinghai Lu <yinghai@...nel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: sdhci-pci fails on 3.0.0-rc1 on Dell E6510

On 15.06.2011 18:54, Ram Pai wrote:
> On Wed, Jun 15, 2011 at 06:40:35PM +0200, Oliver Hartkopp wrote:
>> On 12.06.2011 22:44, Ram Pai wrote:

>>> Looks like the kernel; by default, tries to allocate mem resource of size
>>> 0x4000000 each to the BARs of the cardbus bridge. This cannot be satisfied
>>> meeting all the constraints. The BIOS had not allocated the resource to
>>> begin with.
>>>
>>> Anyone knows if the default value can be reduced to something smaller?
>>> Or Should the resource requirements of cardbus bridge be made nice-to-have?
>>
>> Don't know ...
>>
>> Is anyone already working on this issue?
>>
>> I'm currently running 3.0.0-rc3-00055-gada9c93 which still does not work.
>>
>> Will say: 'Send more patches!' ... that i can test, if you still like the
>> problematic commit's idea ;-)
> 
> Oliver,
> 
> 	Yes. I am working on this. I will send you a patch soon; probably by
> the end of this week. See if they work for you.
> 
> Currently my thought is to make cardbus-bridge resource allocation
> nice-to-have, which means it will be attempted to allocate. But if in case of
> failures, we wont go the full length of releasing other resources to satisfy
> this resource.

Thanks for your fast feedback. I'm looking forward to help you.

Best regards,
Oliver
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